\section{Video broadcast}
\begin{frame}{Video broadcast}{Current practice}
\begin{center}
\begin{tikzpicture}
\draw[thick,color=black,fill=white] (0,0) node{\nodeOneName} circle (0.25);
\draw[thick,color=black,fill=white] (0,3) node{\nodeTwoName} circle (0.25) node[right=4mm]{I- and P-frames};
\draw[thick,color=black,fill=white] (2.1,2.1) node{\nodeTwoName} circle (0.25) node[right=4mm]{I- and P-frames};
\draw[thick,color=black,fill=white] (3,0) node{\nodeFourName} circle (0.25) node[right=4mm]{No frames};
\draw[very thick, ->] (0,0.5) -- (0,2.5);
\draw[very thick, ->] (0.35,0.35) -- (1.77,1.77);
\draw[very thick, ->] (0.5,0) -- (1.5,0);
\TikzBrickWall{0.125}{-0.15}
\draw[very thick,dotted, ->] (1.625,0) -- (2.5,0);
\end{tikzpicture}
\end{center}
\end{frame}
%%%%%%%%%%%%%%%%

\begin{frame}{Video broadcast}{With unequal error protection}
\begin{center}
\begin{tikzpicture}
\draw[thick,color=black,fill=white] (0,0) node{\nodeOneName} circle (0.25);
\draw[thick,color=black,fill=white] (0,3) node{\nodeTwoName} circle (0.25) node[right=4mm]{I- and P-frames};
\draw[thick,color=black,fill=white] (2.1,2.1) node{\nodeTwoName} circle (0.25) node[right=4mm]{I- and P-frames};
\draw[thick,color=black,fill=white] (3,0) node{\nodeFourName} circle (0.25) node[right=4mm]{I-frames};
\draw[very thick, ->] (0,0.5) -- (0,2.5);
\draw[very thick, ->] (0.35,0.35) -- (1.77,1.77);
\draw[very thick, ->] (0.5,0) -- (1.5,0);
\TikzBrickWall{0.125}{-0.15}
\draw[very thick,dotted, ->] (1.625,0) -- (2.5,0);
\end{tikzpicture}
\end{center}
\end{frame}